Speaker
Lorenzo Masetti
(CERN)
Description
The Tracker Control System (TCS) is a distributed control software to operate
2000 power supplies for the silicon modules of the CMS Tracker and monitor
its environmental sensors. TCS must thus be able to handle 10^4 power supply
parameters, 10^3 environmental probes from the Programmable Logic Controllers
of the Tracker Safety System (TSS), 10^5 parameters read via DAQ from the DCUs
in all front end hybrids and from CCUs in all control groups. TCS is built on top
of an industrial SCADA program (PVSS) extended with a framework developed
at CERN (JCOP) and used by all LHC experiments. The logical partitioning of
the detector is reflected in the hierarchical structure of the TCS, where commands
move down to the individual hardware devices, while states are reported up to the
root which is interfaced to the broader CMS control system. The system computes
and continuously monitors the mean and maximum values of critical parameters
and updates the percentage of currently operating hardware. Automatic procedures
switch off selected parts of the detector using detailed granularity and avoiding
widespread TSS intervention.
| Submitted on behalf of Collaboration (ex, BaBar, ATLAS) | CMS Tracker DCS |
|---|
Author
Lorenzo Masetti
(CERN)
